Re: Use of directories to hold root?

[Jan Engelhardt]

On Aug 12 2007 21:23, Al Viro wrote:
>> 
>> pivot_root is atomic afaict, for `mount --move` (which I think Al meant 
>> which MS_MOVE - or some C program using mount(2) of your own), you'd 
>> need multiple calls to mount.
>
>Move itself is done by a single syscall anyway...
>
Yes, but you need needed 2 mounts, 1 chdir and one chroot. Plus, you 
have not freed the data in the rootfs. (Well, neither does 
pivot_root, but run-init from klibc will.)


	Jan
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